<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>


<script>

    //do  while

    var num = 100 ;

    do{
        //执行语句 , 至少会执行一次
        console.log(num);
        num++;

    }while (num <= 10) //false
</script>
</body>
</html>